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Round|Natural|GIA

0.90ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6445689140

Certificate GIA 6445689140

Diamond specifications and retailer prices

From HK$7,359 HKD
As of November 5, 2026
Save HK$16,938 HKD (70%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$25,285 HKD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.9ct natural round diamond

This 0.9ct natural round sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6445689140. Listed at 20 retailers as of November 5, 2026, with a 230% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.90
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6445689140
Dimensions6.18 × 6.14 × 3.84 mm
L/W Ratio1.01
Top View
6.18 mm6.14 mm0.90 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6445689140
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: HK$24,297 HKD|Low: HK$7,359 HKD|High: HK$24,297 HKD|Avg: HK$11,756 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 5, 2026
Retailer 10HK$7,359 HKD
Retailer 9HK$8,889 HKD
Retailer 14HK$9,140 HKD
Retailer 3HK$9,540 HKD
Retailer 5HK$9,610 HKD
Retailer 7HK$9,963 HKD
Retailer 17HK$9,963 HKD
Retailer 15HK$10,340 HKD
Retailer 4HK$10,418 HKD
Retailer 16HK$10,866 HKD
Retailer 6HK$11,015 HKD
Retailer 12HK$11,203 HKD
Retailer 8HK$11,493 HKD
Retailer 2HK$12,803 HKD
Retailer 11HK$14,584 HKD
Retailer 13HK$18,193 HKD
NZ JewellersHK$24,297 HKD

32 data points across 17 retailers

20 retailersHK$7,359 HKD to HK$24,297 HKD

A
Cheapest Retailer
-
HK$7,359 HKD
A
Retailer 2
-
HK$8,889 HKD
View
A
Retailer 3
-
HK$9,140 HKD
View
B+
Retailer 4
-
HK$9,540 HKD
View
B+
Retailer 5
-
HK$9,610 HKD
View
Retailer 6
-
HK$9,963 HKD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
HK$9,963 HKD
View
B+
Retailer 8
-
HK$10,340 HKD
View
Retailer 9
-
HK$10,364 HKD
View
Price last confirmed 44 days ago
B+
Retailer 10
-
HK$10,418 HKD
View
B+
Retailer 11
-
HK$10,866 HKD
View
B+
Retailer 12
-
HK$11,015 HKD
View
B+
Retailer 13
-
HK$11,203 HKD
View
B+
Retailer 14
-
HK$11,493 HKD
View
Retailer 15
-
HK$11,964 HKD
View
Price last confirmed 45 days ago
B
Retailer 16
-
HK$12,803 HKD
View
B
Retailer 17
-
HK$14,584 HKD
View
B
Retailer 18
-
HK$18,193 HKD
View
B
Retailer 19
-
HK$24,297 HKD
View
Most Expensive
NZ Jewellers
07ab2574-a29e-409b-9c2a-a355e5b43375 · Sep 25
HK$25,285 HKD
$3,223 USD
View
Price last confirmed 41 days ago
19 more retailers have this diamond
Prices start from HK$7,359 HKDSave up to HK$16,938 HKD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.90ct Round
HK$7,359 HKD